Originally Posted by EW1BH27
It all depends on what you used already. If it was just typical conventual oil then yes. This is what my engine builder recommended and what I use.


I used that on intial oil when engine was built. I just did oil change .( aprox 500 miles) Penzoil synthetic 10W30

68 Charger 383/ AT Green/Green VT
70 Roadrunner 383/4sp Purple/Black VT